firmware/libfirmware/util/test/test_wraparound.cpp

Directory:	./
File:	firmware/libfirmware/util/test/test_wraparound.cpp
Date:	2025-11-16 14:52:24

	Coverage	Exec	Excl	Total
Lines:	98.0%	49	0	50
Functions:	100.0%	3	0	3
Branches:	36.1%	66	0	183
Decisions:	83.3%	5	-	6

  
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      #include <gtest/gtest.h>
    
      #include <rusefi/rusefi_time_types.h>
    
      #include <rusefi/rusefi_time_wraparound.h>
    
      4
      TEST(util, WrapAround62) {
    
      	// Random test
    
      	{
    
      1
      		WrapAround62 t;
    
      1
      		uint32_t source = 0;
    
      1
      		uint64_t actual = 0;
    
      		// Test random progression, positive and negative.
    
      1
      		uint32_t seed = time(NULL);
    
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      1
      		printf("Testing with seed 0x%08x\n", seed);
    
      1
      		srand(seed);
    
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      		for (unsigned i = 0; i < 10000; i++) {
    
      10000
      			int32_t delta = rand();
    
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      10000
      			if (delta < 0) {
    
      ✗
      				delta = ~delta;
    
      			}
    
      10000
      			delta -= RAND_MAX >> 1;
    
      			// Cap negative test
    
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      			if (delta < 0 && uint64_t(-delta) > actual) {
    
      250
      				delta = -actual;
    
      			}
    
      10000
      			source += delta;
    
      10000
      			actual += delta;
    
      10000
      			uint64_t next = t.update(source);
    
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      10000
      			EXPECT_EQ(actual, next);
    
      		}
    
      	}
    
      	// More pointed test for expected edge conditions
    
      	{
    
      1
      		WrapAround62 t;
    
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      		EXPECT_EQ(t.update(0x03453455), 0x003453455ull);
    
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      		EXPECT_EQ(t.update(0x42342323), 0x042342323ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
    
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      		EXPECT_EQ(t.update(0x42342323), 0x042342323ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
    
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      		EXPECT_EQ(t.update(0xC5656565), 0x0C5656565ull);
    
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      		EXPECT_EQ(t.update(0x01122112), 0x101122112ull); // Wrap around!
    
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      		EXPECT_EQ(t.update(0xC5656565), 0x0C5656565ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
    
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      		EXPECT_EQ(t.update(0xC5656565), 0x0C5656565ull);
    
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      		EXPECT_EQ(t.update(0x01122112), 0x101122112ull); // Wrap around!
    
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      		EXPECT_EQ(t.update(0x42342323), 0x142342323ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
    
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      		EXPECT_EQ(t.update(0x42342323), 0x142342323ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
    
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      		EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
    
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      		EXPECT_EQ(t.update(0x01122112), 0x201122112ull); // Wrap around!
    
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      		EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
    
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      		EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
    
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      		EXPECT_EQ(t.update(0x01122112), 0x201122112ull); // Wrap around!
    
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      		EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
    
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      		EXPECT_EQ(t.update(0x42342323), 0x142342323ull);
    
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      		EXPECT_EQ(t.update(0x01122112), 0x101122112ull);
    
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      		EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
    
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      		EXPECT_EQ(t.update(0x42342323), 0x042342323ull);
    
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      1
      		EXPECT_EQ(t.update(0x03453455), 0x003453455ull);
    
      	}
    
      1
      }

Line	Branch	Decision	Exec	Source
1				#include <gtest/gtest.h>
2				#include <rusefi/rusefi_time_types.h>
3				#include <rusefi/rusefi_time_wraparound.h>
4
5			4	TEST(util, WrapAround62) {
6				// Random test
7				{
8			1	WrapAround62 t;
9			1	uint32_t source = 0;
10			1	uint64_t actual = 0;
11
12				// Test random progression, positive and negative.
13			1	uint32_t seed = time(NULL);
14	1/1 ✓ Branch 1 taken 1 time.		1	printf("Testing with seed 0x%08x\n", seed);
15			1	srand(seed);
16	2/2 ✓ Branch 0 taken 10000 times. ✓ Branch 1 taken 1 time.	2/2 ✓ Decision 'true' taken 10000 times. ✓ Decision 'false' taken 1 time.	10001	for (unsigned i = 0; i < 10000; i++) {
17			10000	int32_t delta = rand();
18	1/2 ✗ Branch 0 not taken. ✓ Branch 1 taken 10000 times.	1/2 ✗ Decision 'true' not taken. ✓ Decision 'false' taken 10000 times.	10000	if (delta < 0) {
19			✗	delta = ~delta;
20				}
21			10000	delta -= RAND_MAX >> 1;
22
23				// Cap negative test
24	4/4 ✓ Branch 0 taken 5082 times. ✓ Branch 1 taken 4918 times. ✓ Branch 2 taken 250 times. ✓ Branch 3 taken 4832 times.	2/2 ✓ Decision 'true' taken 250 times. ✓ Decision 'false' taken 9750 times.	10000	if (delta < 0 && uint64_t(-delta) > actual) {
25			250	delta = -actual;
26				}
27
28			10000	source += delta;
29			10000	actual += delta;
30
31			10000	uint64_t next = t.update(source);
32	2/6 ✓ Branch 2 taken 10000 times. ✗ Branch 5 not taken. ✓ Branch 6 taken 10000 times. ✗ Branch 9 not taken. ✗ Branch 14 not taken. ✗ Branch 17 not taken.		10000	EXPECT_EQ(actual, next);
33				}
34				}
35
36				// More pointed test for expected edge conditions
37				{
38			1	WrapAround62 t;
39
40	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x03453455), 0x003453455ull);
41	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x42342323), 0x042342323ull);
42	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
43	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x42342323), 0x042342323ull);
44	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
45	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0xC5656565), 0x0C5656565ull);
46	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x01122112), 0x101122112ull); // Wrap around!
47	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0xC5656565), 0x0C5656565ull);
48	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
49	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0xC5656565), 0x0C5656565ull);
50	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x01122112), 0x101122112ull); // Wrap around!
51	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x42342323), 0x142342323ull);
52	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
53	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x42342323), 0x142342323ull);
54	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
55	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
56	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x01122112), 0x201122112ull); // Wrap around!
57	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
58	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
59	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
60	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x01122112), 0x201122112ull); // Wrap around!
61	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0xC5656565), 0x1C5656565ull);
62	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x184356345ull);
63	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x42342323), 0x142342323ull);
64	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x01122112), 0x101122112ull);
65	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x84356345), 0x084356345ull);
66	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x42342323), 0x042342323ull);
67	2/6 ✓ Branch 5 taken 1 time. ✗ Branch 10 not taken. ✓ Branch 11 taken 1 time. ✗ Branch 14 not taken. ✗ Branch 19 not taken. ✗ Branch 22 not taken.		1	EXPECT_EQ(t.update(0x03453455), 0x003453455ull);
68				}
69			1	}
70
71

Function (Line)	Call count	Line coverage	Branch coverage	Block coverage
util_WrapAround62_Test::TestBody() (line 5)	called 1 time	97.9%	36.1%	31.0%
util_WrapAround62_Test::util_WrapAround62_Test() (line 5)	called 1 time	100.0%	-%	100.0%
util_WrapAround62_Test::~util_WrapAround62_Test() (line 5)	called 2 times	100.0%	-%	100.0%